My husband and I have started to take maca, have not yet seen any effects but we haven't taken it that long. I would like to lessen the pains from menstruation and ovulation and maybe increase my libido. A too big of a portion (more than one teaspoon) will cause stomach aches for me but not to my husband so you might want to try and increase the dosage step by step when start using maca. We really don't like to flavor or the smell and have difficulties in finding something to take the maca with which could disguise the quite unique taste. The big bag is a great value though!